Infineon Technologies AG has launched the MOTIX TLE9954QSW40-33, its first fully integrated motor control system-in-package (SiP) designed for automotive applications. This new motor driver tackles the industry’s push for extreme miniaturization and smarter motor control in tight spaces.
Andreas Doll, Senior Vice President and General Manager of Smart Power at Infineon, explained that by combining all essential motor control functions—including power stages—into a single package, the solution can cut component counts by up to 30% and reduce circuit board size by 40% compared to traditional discrete designs. This makes it ideal for compact applications such as thermal management systems in electric vehicles, including pumps, fans, and valves, as well as comfort features like seat adjustment.
The core of the MOTIX TLE9954QSW40-33 is a highly integrated system architecture that combines the motor control microcontroller, power supply, communication interface, 3-phase bridge driver, and, for the first time, the OptiMOS 7 power stage within a single LIQFN-58-1 package. The package is specifically designed to optimize heat dissipation from the MOSFETs to the PCB, supporting high power density while significantly reducing parasitic inductances and improving EMC behavior, particularly at high switching frequencies. Thanks to this level of integration, PCB implementations for practical comfort-system designs can be smaller than a postage stamp, making them exceptionally compact for automotive applications. The motor drive solution is complemented by a 150 W water pump reference design and delivers even higher power levels under optimized thermal conditions.
The devices feature an Arm Cortex-M23 core with a clock frequency of up to 40 MHz, integrated 72 kB flash memory, and 6 kB RAM. Field-oriented control (FOC) provides efficient and precise motor operation, while flexible PWM generation via the CCU7 timer unit and automatic LIN message processing reduces CPU load. Integrated Arm TrustZone technology provides hardware-based isolation of safety- and security-relevant functions for automotive applications. With AEC-Q100 Grade 0 qualification and support for ISO 26262 up to ASIL B, the MOTIX TLE9954QSW40-33 meets the reliability and safety requirements of modern automotive motor control applications. Moreover, the MOTIX MCU (SiP) is complemented by a comprehensive system offering including hardware kits, application-specific reference designs, specialized software packages, development tools, and application-optimized FOC motor control software, all of which increase design flexibility and accelerate time to market.
Availability
The MOTIX TLE9954QSW40-33 will be available in early Q2/2026. Samples, evaluation boards, reference designs, documentation, software, and tools are available upon request.
Customers can learn more about the MOTIX TLE9954QSW40-33 in a live demo at embedded world 2026, showcasing how the product powers a water pump for thermal management in cars.
